Generalized quasispin for supergroups

Abstract
The embedding of the dynamical algebra U(M/N) of nuclear supersymmetries in larger algebraic structures is studied. A noncompact Z2⊕Z2 graded color superalgebra SpO(2M/1/2N/0) is identified as a receptacle for various chains containing boson and fermion (super) algebras. The existence of a generalized quasispin algebra is demonstrated and discussed.